• Items (134,338)
• Collections (2,857)
• Trails (289)
• Stories (543)

Arts and Culture

• Carnivals (2,666)
• Choirs (725)
• Crafts (1,460)
• Eisteddfodau (554)
• Legends, tales & myths (221)
• Music (2,205)
• Operas (126)
• Theatre and performing arts (844)
• OTHER: Arts + Culture (4,441)

Biology

• Animals (160)
• Birds (470)
• Bones (30)
• Eggs (31)
• Flowering Plants (217)
• Fungi/Lichens/Algae (118)
• Insects (62)
• Marine Invertebrates (83)
• Non-flowering Plants (44)
• Shells (23)
• OTHER: Biology (112)

Community and social

• Agricultural societies (501)
• Clothing and accessories (1,833)
• Criminal System (632)
• Events (3,373)
• Fairs (674)
• Food & Drink (1,381)
• Health (1,089)
• Houses and Homes (8,058)
• Markets (291)
• People and Family (6,250)
• Schools / Education (2,447)
• Shops (571)
• Societies and clubs (5,814)
• OTHER: Community and Social (4,960)

Geology

• Fossils (74)
• Maps (1,249)
• Minerals (68)
• Rocks (143)
• OTHER: Geology (120)

Industry and Commerce

• Banks / Economy / Finance (398)
• Coal (2,003)
• Communication and media (1,307)
• Food Industry (872)
• Industrial Disasters (219)
• Iron (455)
• Mining (Other) (349)
• Pottery (34)
• Retail / Trade (332)
• Slate & Lead (590)
• Steel (204)
• Tin (73)
• Trains and Railways (1,113)
• Transport (1,708)
• Waterways and Shipping (3,403)
• OTHER: Industry (2,374)
• Wool (56)

Nature Represented

• Scientific Illustrations (226)
• Scientific Models (15)

Physical Environment

• Agricultural machinery and implements (892)
• Castles and Fortifications (290)
• Churches, Chapels & other places of worship (840)
• Cities, towns & villages (3,987)
• Farms and smallholdings (2,487)
• Forests/Forestry (328)
• Islands (620)
• Landscape views (1,660)
• Mountains/hills (345)
• Natural disasters (97)
• Parks and gardens (1,033)
• Pubs and Clubs (187)
• Rivers, Lakes and Dams (415)
• Seaside/Sea (696)
• Sites, Monuments & Structures (4,336)
• OTHER: Physical Environment (1,875)

Religion and Belief

• Christianity (1,250)
• Customs and practices (3,849)
• Nonconformist denominations (993)
• Pre Christian Wales (908)
• Religious buildings (4,286)
• Religious communities (1,746)
• Roman Catholicism (61)
• Societies and sects (210)
• World Faiths (981)
• OTHER: Religion and Beliefs (1,360)

Sport and Leisure

• Clubs and societies (2,454)
• Fishing (653)
• Football (1,573)
• Holidays and resorts (527)
• Places of entertainment (487)
• Processions and public events (1,015)
• Social groups (1,860)
• Sports and games (1,818)
• Rugby (267)
• OTHER: Sport and leisure (2,573)

War, protest and politics

• Civil and political rights (586)
• Elections and electioneering (221)
• First World War (1914-18) (5,068)
• Political parties (296)
• Second World War (1939-45) (735)
• Societies and pressure groups (376)
• Soldiers (2,738)
• Trade unionism & labour disputes (167)
• Warfare (3,603)
• OTHER: War, Protest and Politics (696)

21st century

• 2000s (11,305)
• 2010s (7,600)
• 2020s (267)

20th century

• 1900s (1,313)
• 1910s (3,944)
• 1920s (1,682)
• 1930s (2,944)
• 1940s (1,807)
• 1950s (4,841)
• 1960s (3,666)
• 1970s (2,503)
• 1980s (2,448)
• 1990s (3,076)

19th century

• 1800s (677)
• 1810s (450)
• 1820s (566)
• 1830s (900)
• 1840s (1,570)
• 1850s (664)
• 1860s (736)
• 1870s (922)
• 1880s (662)
• 1890s (630)

18th century

• 1700-1799 (593)

Archaeological Periods

• Early Modern (1536 to 1699) (363)
• Middle Ages (1086 to 1536) (2,690)
• Early Medieval(410 to 1086) (263)
• Roman (43 to 410) (609)
• Iron Age (-700 to 43) (1,212)
• Bronze Age (-2200 to -700) (489)
• Neolithic (-4400 to -2200) (180)
• Mesolithic (-8500 to -4400) (66)
• Palaeolithic (-250000 to -8500) (5)

Geological Periods

• Quaternary (2.6 mya to present day) (1)
• Pre-Quaternary (2.6 mya and earlier) (29)